Subject and purpose of work: The aim of the article is to present the results of economic analysis of the basic operating activity of PKP Intercity by using productivity ratios. Materials and methods: The analysis is based on the PKP Group financial reports from 2004 – 2013. The basic research method was the analysis of the efficiency, Energy intensity and material consumption indicators from the basic operating activity. The financial results of basic operating activity and rail transport performance in passenger kilometres and train kilometres are considered as the result of PKP Intercity activity. Results: The examined company made profits till 2008. At the end of 2008 PKP Group was restructured, which was the reason of the company’s profitability collapse. The causes of this phenomenon can be clearly noticed during the observation of work efficiency, Energy intensity and material consumption indicators in the basic operating activity. Conclusions: With the use of particular indicators, a simulation of the company’s revenues from basic operating activity has been carried out using what-if analysis. It turned out, that the best solution would be bringing back the work efficiency from before 2008. It could be done in a few ways: significant reduction of employment (especially in administration), significant increase of train connections and the rise of ticket prices.